Kristin Cavallari, came to fame on MTV, when she starred on the shows \"Laguna Beach: The Real Orange County\" and \"The Hills.\" She's also had roles in films like \"Van Wilder: Freshman Year\" and on TV's \"CSI: NY\" and \"The Middle,\" Cavallari was set to marry Chicago Bears quarterback Jay Cutler, but he ended their engagement in July 2011. She is paired with Mark Ballas. Credit: ABC/Craig Sjodin